Alfred Lynam January 24, 2008 Dynamics and Control Main D&C Simulation Code and Required Inputs

1. Alfred LynamJanuary 24, 2008Dynamics and ControlMain D&C Simulation Code andRequired Inputs AAE 450 Spring 2008 Dynamics and Control

2. Simulink Code AAE 450 Spring 2008 Dynamics and Control

3. Features • Highly accurate and precise dynamics model includes: • Custom Variable Mass 6 DOF, Earth-Centered, Earth-Fixed Equation of Motion Integrator (uses quaternions to avoid singularities) • COESA 1976 Atmosphere Model • WGS84 Exact gravity model (can include mass of atmosphere and centrifugal forces) • Instantaneous center of gravity and inertia tensor estimators • Required Inputs • Nominal Trajectory/Initial Conditions • Pointing/Attitude requirements • Full and empty masses, centers of mass, and inertia tensors for stages • Center of pressure, aerodynamic coefficients, thrust, and wind • Future Work • Design a Controller AAE 450 Spring 2008 Dynamics and Control

4. Backup Slides • References • U.S. Standard Atmosphere, 1976, U.S. Government Printing Office, Washington, D.C. • NIMA TR8350.2, “Department of Defense World Geodetic System 1984, Its Definition and Relationship with Local Geodetic Systems.” • Stevens, B. L., and F. L. Lewis, Aircraft Control and Simulation, Second Edition, John Wiley & Sons, New York, 2003. • McFarland, Richard E., A Standard Kinematic Model for Flight simulation at NASA-Ames, NASA CR-2497. • "Supplement to Department of Defense World Geodetic System 1984 Technical Report: Part I - Methods, Techniques and Data Used in WGS84 Development,"DMA TR8350.2-A. AAE 450 Spring 2008 Dynamics and Control

5. Backup Slides(EOMs) AAE 450 Spring 2008 Dynamics and Control

6. Backup Slides(Subsystems Within EOMs) AAE 450 Spring 2008 Dynamics and Control

7. Backup Slides(6 DOF EOMs) AAE 450 Spring 2008 Dynamics and Control

8. Backup Slides(coordinates) Figure by: Amanda Briden AAE 450 Spring 2008